TWM619910U - Seal - Google Patents

Abstract

A seal includes a first adhesive layer, an electronic component layer, a second adhesive layer and a protective layer. The first adhesive layer has a first thickness. The electronic component layer is arranged over the first adhesive layer and includes a first radio frequency identification tag, wherein the radio frequency identification tag includes a first antenna structure and a first chip electrically connected to the first antenna structure. The second adhesive layer is disposed over the electronic component layer and has a second thickness different from the first thickness. The protective layer is arranged over the second adhesive layer.

Description

Seal

The present disclosure relates to a seal, and particularly to an electronic seal including a radio frequency identification tag.

Most of the international trade or the circulation of goods are placed in containers and transported. In the process of shipping the container, problems such as the container or the contents of the container may be dropped and stolen. Therefore, the safety monitoring mechanism of containers is an important issue for global trade and the circulation of goods.

Traditionally, containers are sealed at their door bolts. Such seals usually utilize mechanical container seals. In some scenarios, mechanical container seals will be printed with exposed barcodes for comparison by customs officers. However, the seal of this mechanical container is not only easy to be damaged, but also easy to be copied, so the safety is not high.

An aspect of the present disclosure provides a seal including a first adhesive layer, an electronic component layer, a second adhesive layer, and a protective layer. The first adhesive layer has a first thickness. The electronic component layer is disposed on the first adhesive layer and includes a first radio frequency identification tag, wherein the radio frequency identification tag includes a first antenna structure and a first chip electrically connected to the antenna structure. The second adhesive layer is disposed on the electronic component layer and has a second thickness different from the first thickness. The protective layer is arranged on the second adhesive layer.

The following description will refer to the accompanying drawings to more fully describe the present disclosure. The drawings show exemplary embodiments of the present disclosure. However, the present disclosure can be implemented in many different forms, and should not be construed as being limited to the exemplary embodiments set forth herein. These exemplary embodiments are provided to make the present disclosure thorough and complete, and to fully convey the scope of the present disclosure to those skilled in the art. Similar reference numerals indicate the same or similar elements.

The terminology used herein is only used for the purpose of describing specific exemplary embodiments, and is not intended to limit the present disclosure. As used herein, unless the context clearly dictates otherwise, the singular forms "a", "an" and "said" are intended to also include the plural forms. In addition, when used herein, "includes" and/or "includes" or "includes" and/or "includes" or "has" and/or "has", integers, steps, operations, elements and/or components , But does not exclude the presence or addition of one or more other features, regions, integers, steps, operations, elements, components and/or groups thereof.

Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by those of ordinary skill in the art to which this disclosure belongs. In addition, unless clearly defined in the text, terms such as those defined in general dictionaries should be interpreted as having meanings consistent with their meanings in the related technology and the present disclosure, and will not be interpreted as idealized or overly formal meaning.

Exemplary embodiments will be described with reference to the drawings in FIGS. 1 to 10. DETAILED DESCRIPTION The content of this case will be described in detail with reference to the accompanying drawings, wherein the depicted elements are not necessarily shown to scale, and through several views, the same or similar reference signs are represented by the same or similar reference signs to indicate the same or similar Components.

Fig. 1 shows a schematic top view of a seal according to some embodiments of the present disclosure. Figure 2 shows a schematic cross-sectional view of a seal according to some embodiments of the present disclosure. In some embodiments, FIG. 2 is a cross-sectional view along the line A-A' of FIG. 1. For simplicity and clarity of description, some details/sub-components of the exemplary system are not clearly marked/shown in the figure.

The shape of the seal allows it to be attached to both door panels of a closed container at the same time. In this way, when the container door is opened, the seal may be damaged visually identifiable, so as to achieve the purpose of alerting the inspector. Taking the seal 100 shown in FIG. 1 as an example, it has a substantially rectangular top-view profile, and can be defined as two side regions 120 and an intermediate region 110 located between the two side regions 120. In some usage scenarios, the two side areas 120 will be attached to the two door panels of the container, respectively. Therefore, when the container door is opened, the side area 120 will be damaged. It is worth noting that the middle area 110 can be glued to the glue strip at the junction of the two door panels; by this, when the container door is opened, even if the side area 120 is damaged, the middle area 110 on the glue strip is higher. The opportunity to maintain its structural integrity.

Referring to FIG. 2, in the cross-sectional view shown, the seal 200 is disposed on the release layer 205, and includes a first adhesive layer 215, an electronic component layer 225 disposed on the first adhesive layer 215, and an electronic component The second adhesive layer 235 on the layer 225 and the protective layer 245 provided on the second adhesive layer 235. When the seal 200 is torn off from the release layer 205, the first adhesive layer 215 can be adhered to an article, such as a container door, in a form similar to a patch. The release layer 205 may be release paper, fragile paper, or coated paper. In some embodiments, the first adhesive layer 215 includes a glue layer and has a first thickness T1. The second adhesive layer 235 includes a glue layer and has a second thickness T2 different from the first thickness T1. In some embodiments, the thickness of the first adhesive layer 215 is greater than the thickness of the second adhesive layer 235 and has greater adhesion, so it is suitable for sticking to the container door. In some embodiments, the ratio of the first thickness T1 to the second thickness T2 is between 6 and 1.

The electronic component layer 225 includes a radio frequency identification (RFID) tag, which includes a chip and an antenna structure electrically connected to the chip. When the electromagnetic signal emitted by the external RFID reader is received by the antenna structure, the chip transmits the identification information stored in the internal through the antenna structure for the external RFID reader to receive, thereby achieving the function of information exchange. In some embodiments, the identification information includes a unique identifier (UID) corresponding to the container or the contents of the container.

The protective layer 245 provides a protective function to prevent the electronic component layer from contacting external contaminants. For example, the protective layer 245 includes polyester synthetic paper (Polypropylene (PP) synthesis) and has waterproof properties. In some embodiments, the protective layer 245 may be printed with specific words or patterns (such as the term "seal" on the seal 100 in FIG. 1) to warn others not to tear it easily. However, it should be noted that the term "seal" on the seal 100 in FIG. 1 is only an example, and the present disclosure is not limited thereto. Other terms and/or patterns may also be printed on the seal 100, or any slogan or pattern may not be printed.

FIG. 3 shows a schematic top view of the electronic component layer of the seal according to some embodiments of the present disclosure. For simplicity and clarity of description, some details/sub-components of the exemplary system are not clearly marked/shown in the figure.

The illustrated electronic component layer 325 includes a first RFID tag 321, wherein the RFID tag 321 includes a first antenna structure 322 and a first chip 323 electrically connected to the first antenna structure 322.

When the electromagnetic signal emitted by the external RFID reader is received by the first antenna structure 322, the first chip 323 is excited, and the internal related information (for example, identification information) of the first chip 323 is reversed and sent back to the external RFID with electromagnetic signals. Reader, so as to achieve the function of information exchange.

The plane profile of the seal shown in FIG. 3 is roughly rectangular. The illustrated first antenna structure 322 has a main body 322m and six protrusions 322p. It should be understood that although the first antenna structure 322 shown in FIG. 3 has six protrusions 322p, the present disclosure is not limited thereto, and the first antenna structure 322 may have any number of protrusions.

The main body portion 322m is a multi-turn loop antenna structure, and the protruding portion 322p extends from the outermost turn of the loop antenna structure. In other words, the main body portion 322m and the protruding portion 322p all belong to the metal radiating portion of the first antenna structure 322. Therefore, the shape, length and width of the protrusion 322p will affect the antenna characteristics (for example, operating frequency) and/or other electrical characteristics (for example, impedance matching characteristics, equivalent circuit, etc.) of the first antenna structure 322. The exemplary first antenna structure 322 may have a bridge element 322b for bridging two separate metal contacts to be electrically connected to each other, thereby forming a loop antenna structure.

The main body portion 322m can be arranged in the middle area 310 of the plane contour to facilitate the adhesion of the seal to the container door. The main body portion 322m can substantially correspond to the rubber strip of the container door, thereby preventing the main body portion 322m from improperly contacting the container. The metal surface of the door fails due to a short circuit.

In addition, since the protrusion 322p is a part of the first antenna structure 322, if the protrusion 322p is damaged (for example, broken or cracked), the antenna characteristics and/or other electrical characteristics of the first antenna structure 322 will be caused. Changes. At this time, if an external RFID reader is used to read the seal, the external RFID reader may not be able to read the seal, or the reading result obtained will be different from when the first antenna structure 322 is intact The reading result obtained. The inspector can identify the reading result of the external RFID reader through a specific application (APP) on the wireless communication device, and judge whether the structure of the seal is damaged according to the reading result. For example, when the protrusion 322p of the seal is broken or damaged, if the seal is read by an external RFID reader, the specific APP connected to the external RFID reader will display the external RFID reader reading Fetch failed, read abnormally, or unrecognized. Therefore, even if the visual appearance of the seal is not obviously damaged, the inspector can still know whether the seal is damaged directly through the specific APP, thereby enhancing the safety of the seal.

On the other hand, in the illustrated embodiment, the protruding portion 322p extends outward from the main body portion 322m to the vicinity of the boundary B of the plane profile, so as to extend to the side area 320. In this way, when the container door is opened, the side area 320 and the protrusion 322p will be damaged, which will affect the reading result of the seal by the external RFID reader. In some embodiments, the distance between the protrusion 322p and the boundary B is no more than 5% of the entire length of the seal. The six protrusions 322p in the figure extend outward from the main body 322m to the side area 320.

FIG. 4 shows a schematic top view of the electronic component layer of the seal according to some embodiments of the present disclosure. For simplicity and clarity of description, some details/sub-components of the exemplary system are not clearly marked/shown in the figure.

The illustrated electronic component layer 425 includes a first RFID tag 421, wherein the RFID tag 421 includes a first antenna structure 422 and a first chip 423 electrically connected to the first antenna structure 422.

The plane profile of the seal shown in FIG. 4 is roughly rectangular. The first antenna structure 422 has a main body 422m and a protrusion 422p. In the illustrated embodiment, the number of the protrusions 422p is two, and they respectively extend from the outermost turn of the main body 422m and serve as the metal radiating portion of the first antenna structure 422 together with the main body 422m. The main body portion 422m is disposed in the middle area 410 of the plane contour; the protrusion 422p extends outward from the main body portion 422m to the vicinity of the boundary of the plane contour, thereby covering the side area 420. The exemplary first antenna structure 422 has a bridge element 422b for connecting two separate metal contacts to electrically connect each other, thereby forming a loop antenna structure.

Similar to the protrusion 322p shown in FIG. 3, the protrusion 422p is a part of the first antenna structure 422. Therefore, if the protrusion 422p is damaged, the antenna characteristics and/or other electrical characteristics of the first antenna structure 422 will be caused. Changes. At this time, if an external RFID reader is used to read the seal, the reading result obtained will be different from the reading result obtained when the first antenna structure 422 is intact. The inspector and/or the back-end system can identify the difference of the above-mentioned reading results through a specific APP on the wireless communication device (for example, identify whether the reading result is a reading error, reading abnormality, or unrecognized), so as to determine the seal Whether the structure is damaged.

In some embodiments, compared with the reading result obtained under normal reading, the reading abnormality refers to, for example, that only partial or incomplete readable information of the first chip 423 can be obtained from the reading result. For example, if the structure of the first antenna structure 422 is complete, the external RFID reader can read the first chip 423 normally to obtain the first reading result, where the first reading result may include Completely readable information in the first chip 423; on the contrary, if the structure of the first antenna structure 422 is damaged (for example, the protrusion 422p is broken), the external RFID reader may still be able to read the first chip 423 The reading is performed and the second reading result is obtained, but the second reading result may be only partial or incomplete readable information in the first chip 423. In other words, the second reading result will be different from the first reading result. The specific APP on the wireless communication device can exchange information with the external RFID reader to obtain the first reading result and the second reading result, and to identify the first reading result and the second reading result To determine whether the structure of the seal is damaged (for example, if the reading result corresponds to the second reading result, then it is judged that the structure of the seal is damaged). In some embodiments, the specific APP can provide the above-mentioned judgment result to the inspector and/or the background system by displaying images, playing sounds, and/or sending signals.

In addition, it has been observed that when the container is being transported, the door leaves of different containers often move due to the shaking of the vehicle. Therefore, when the seal is stuck to the seam of the container door, the four corner areas C are prone to errors between the door leaves of the container. The container was mistakenly regarded as improperly opened. If the electronic components (such as the first antenna structure 422 or the first chip 423) are placed on the corner area C, they are easily damaged. Therefore, in some applications, the electronic components of the seal can be arranged to avoid the four corner regions C, thereby reducing the chance of damage. For example, the two protrusions 422p of the first antenna structure 422 shown in the figure are arranged to avoid the four corner regions C of the plane profile of the seal (for example, approximately along the central horizontal long axis of the seal to both sides extend). In some embodiments, the illustrated seal may further have a T-shaped notch T, and the two wings of the T-shaped notch T extend substantially along the outer edge of the main body portion 422m of the first antenna structure 422. When the seal is torn apart, the T-shaped cut T helps to destroy the overall structure of the seal and is easy to be recognized visually.

FIG. 5 shows a schematic top view of the electronic component layer of the seal according to some embodiments of the present disclosure. For simplicity and clarity of description, some details/sub-components of the exemplary system are not clearly marked/shown in the figure.

The illustrated electronic component layer 525 includes a first RFID tag 521, wherein the RFID tag 521 includes a first antenna structure 522 and a first chip 523 electrically connected to the first antenna structure 522. The first antenna structure 522 is disposed in the middle area 510 of the plane profile. The first RFID tag 521 further includes a first conductive circuit 524 electrically connected to the chip. The first conductive line 524 is arranged around the first antenna structure 522 and extends to the vicinity of the boundary of the plane profile of the seal, so as to extend to the side area 520.

The illustrated first chip 523 includes a first set of pins 523a and a second set of pins 523b. The first set of pins 523a are electrically connected to the first antenna structure 522. The second set of pins 523b are electrically connected to the first conductive circuit 524.

The first chip 523 is configured to feed a signal to the first antenna structure 522 through the first set of pins 523a, and to detect whether the first conductive circuit 524 is broken through the second set of pins 523b. For example, the first chip 523 can detect whether the loop formed by the first conductive circuit 524 is in an open state through the second set of pins 523b to determine whether the first conductive circuit 524 is broken (for example, If it is detected that the loop is open, it is determined that the first conductive line 524 is broken). In addition, unlike the protrusion 322p or 422p shown in FIG. 3 or FIG. 4, the first conductive line 524 is not a part of the first antenna structure 522, so the fracture of the first conductive line 524 and No, it does not substantially affect the antenna characteristics or other electrical characteristics of the first antenna structure 522. Through this arrangement, whether the first conductive circuit 524 in the seal is broken or not will not affect the normal reading of the seal by the external RFID reader. In other words, even if the first conductive line 524 is broken, if the structure of the first antenna structure 522 remains intact, the external RFID reader can still successfully read the information in the first chip 523 (for example, a complete readable Get information). In addition, the reading result of the external RFID reader may further include the open detection result of the first chip 523 on the first conductive circuit 524, so that the inspector or the background system can determine whether the first conductive circuit 524 is broken or not. Whether the seal is broken. For example, the open circuit detection result can be provided to a wireless communication device installed with a specific APP, and the specific APP can determine whether the structure of the seal is damaged according to the open circuit detection result, and through video, audio, and/or signal methods. , Provide its judgment result to the inspector and/or back-end system.

FIG. 6 shows a schematic top view of the electronic component layer of the seal according to some embodiments of the present disclosure. For simplicity and clarity of description, some details/sub-components of the exemplary system are not clearly marked/shown in the figure.

The illustrated electronic component layer 625 includes a first RFID tag 621, wherein the RFID tag 621 includes a first antenna structure 622 and a first chip 623 electrically connected to the first antenna structure 622. The first antenna structure 622 is disposed in the middle area 610 of the plane profile. The first RFID tag 621 further includes a first conductive circuit 624 electrically connected to the chip. The first conductive line 624 is arranged around the first antenna structure 622 and extends to the vicinity of the boundary of the plane profile of the seal, so as to extend to the side area 620. The exemplary first antenna structure 622 has a bridge element 622b for bridging two separate metal contacts to be electrically connected to each other, thereby forming a loop antenna structure.

In the illustrated embodiment, the RFID tag further includes a second antenna structure 626, which is electrically connected to the first chip 623. The operating frequency band of the second antenna structure 626 is different from the operating frequency band of the first antenna structure 622. Through the arrangement of the second antenna structure 626, the seal can cooperate with user terminals (such as smart phones or readers) of different operating frequency bands. In some embodiments, the operating frequency band of the first antenna structure 622 is a high frequency (High Frequency, HF) frequency band (about 13.56 MHz), so as to be suitable for short-distance transmission (for example, about 1 meter); the second antenna The operating frequency band of the structure 626 is an Ultra High Frequency (UHF) frequency band (approximately 860-930 MHz), which is suitable for long-distance transmission (for example, approximately 5 meters or more).

The illustrated first chip 623 includes first, second, and third sets of pins. The first, second, and third groups of pins can be electrically connected (for example, connected by welding) to the first antenna structure 622, the first metal portion 623a, the second metal portion 623b, and the third metal portion 623c, respectively. The first conductive circuit 624 and the second antenna structure 626. Furthermore, the first metal portion 623a corresponds to the feeding portion of the first antenna structure 622; the second metal portion 623b corresponds to the area where the front end of the first conductive circuit 624 is electrically connected to the first chip 623 Section; The third metal portion 623c corresponds to the feeding portion of the second antenna structure 622.

The first chip 623 is configured to feed a signal to the first antenna structure 622 (or receive a signal from the first antenna structure 622) through the first set of pins electrically connected to the first metal portion 623a , And is configured to detect whether the first conductive circuit 624 is broken through the second set of pins electrically connected to the second metal portion 623b, and is configured to detect whether the first conductive circuit 624 is broken through the electrical connection with the third metal portion 623c The third set of pins feeds signals to the second antenna structure 626 (or receives signals from the second antenna structure 626). Furthermore, the first antenna structure 622, the first conductive circuit 624, and the second antenna structure 626 are respectively connected to three sets of independent pins on the first chip 623, and the three sets of independent pins are connected to the first chip 623 respectively. A set of metal portions 623a, a second set of metal portions 623b, and a third set of metal portions 623c are electrically connected, wherein the first chip 623 can pass through the second set of pins electrically connected to the second set of metal portions 623b It is tested whether the loop formed by the first conductive line 624 is in an open state to determine whether the first conductive line 624 is broken. Since the first conductive line 624 is not a part of the first antenna structure 622 or the second antenna structure 626, whether the first conductive line 624 is broken or not does not substantially affect the first antenna The operating frequency or other antenna characteristics (such as impedance matching) of the structure 622 or the second antenna structure 626.

Similar to the first conductive circuit 524 shown in FIG. 5, whether the first conductive circuit 624 in FIG. 6 is broken or not will not affect the normal reading of the seal by the external RFID reader. In other words, even if the first conductive circuit 624 is broken, if the structure of the first antenna structure 622 remains intact, the external RFID reader can still successfully read the information in the first chip 623. In addition, the reading result of the external RFID reader may further include the open detection result of the first chip 623 on the first conductive circuit 624. The external RFID reader can transmit the reading result to a wireless communication device installed with a specific APP. The specific APP can determine whether the structure of the seal is damaged according to the open circuit detection result, and through images, sounds, and/or signals, etc. In this way, the judgment result is provided to the inspector and/or the back-end system.

FIG. 7 shows a schematic top view of the electronic component layer of the seal according to some embodiments of the present disclosure. For simplicity and clarity of description, some details/sub-components of the exemplary system are not clearly marked/shown in the figure.

The illustrated electronic component layer 725 includes a first RFID tag 721 and a second RFID tag 727, which are electrically isolated from the first RFID tag 721. In this way, when one of the first RFID tag 721 and the second RFID tag 727 is damaged, the other can also perform the function of exchanging information with the reader, thereby improving the reliability of the seal.

The first RFID tag 721 includes a first antenna structure 722 and a first chip 723 electrically connected to the first antenna structure 722. The first antenna structure 722 is disposed in the middle area 710 of the plane profile. The first RFID tag 721 further includes a first conductive circuit 724 electrically connected to the chip. The first conductive line 724 extends to the vicinity of the boundary of the plane profile of the seal, so as to extend to the side area 720. The exemplary first antenna structure 722 has a bridge element 722b for bridging two separate metal contacts to electrically connect to each other, thereby forming a loop antenna structure.

The second RFID tag 727 includes a second antenna structure 728, a second conductive circuit 729, and a second chip 730. The operating frequency band of the second antenna structure 728 is different from the operating frequency band of the first antenna structure 722. The second conductive line 729 is arranged around the second antenna structure 728 and extends to the vicinity of the boundary of the plane profile of the seal. The second chip 730 is electrically connected to the second antenna structure 728 and the second conductive circuit 729, and is configured to detect whether the second conductive circuit 729 is broken.

Figure 8 shows a schematic top view of a seal according to some embodiments of the present disclosure. For simplicity and clarity of description, some details/sub-components of the exemplary system are not clearly marked/shown in the figure.

The illustrated seal 800 not only has the aforementioned first adhesive layer, electronic component layer, second adhesive layer, and protective layer 845, but also includes a tamper-evident sticker layer 850. The protective layer 845, the second adhesive layer, the electronic component layer, and the first adhesive layer have substantially the same planar profile and are sequentially stacked to form a multi-layer structure. The tamper-evident sticker layer 850 is arranged on the set of multilayer structures. In other words, the tamper-evident sticker layer 850 is disposed on the protective layer 845. In some embodiments, one of the planes of the tamper-evident sticker layer 850 has adhesiveness, which can be realized by a fragile sticker structure, for example.

In addition, as shown in FIG. 8, the area of the plane contour of the tamper-evident sticker layer 850 is larger than the area of the plane contour of the protective layer 845. When the tamper-evident sticker layer 850 is disposed on the protective layer 845, the tamper-evident sticker layer 850 can completely cover the protective layer 845 to increase the structural strength of the seal 800 as a whole when it is adhered to the container.

Figure 9 shows a schematic top view of a seal according to some embodiments of the present disclosure. For simplicity and clarity of description, some details/sub-components of the exemplary system are not clearly marked/shown in the figure.

Similar to the seal 800 shown in FIG. 8, the illustrated seal 900 not only has a first adhesive layer, an electronic component layer, a second adhesive layer, and a protective layer 945, but also includes a tamper-evident sticker layer 950. The protective layer 945, the second adhesive layer, the electronic component layer, and the first adhesive layer have substantially the same planar profile and are sequentially stacked to form a multi-layer structure. The tamper-evident sticker layer 950 is arranged under the multi-layer structure. In other words, the tamper-evident sticker layer 950 is disposed under and adhered by the first adhesive layer. One of the planes of the tamper-evident sticker layer 950 is adhesive, which can be realized by a fragile sticker structure, for example. Therefore, when the seal 900 is adhered to a target (such as a container door), it is adhered to the target through the adhesiveness of the tamper-evident sticker layer 950.

In addition, as shown in FIG. 9, the area of the plane contour of the tamper-evident sticker layer 950 may be greater than the area of the plane contour of the protective layer 945.

FIG. 10 shows a flowchart of a mechanism for accessing and verifying the internal code of a seal according to some embodiments of the present disclosure. According to the illustrated embodiment, at least a part of the data stored in the chip of the seal is encrypted. In this case, if the chip of the seal is directly read by an external RFID reader, the encrypted part of the data will be shielded and the content cannot be known, so the confidentiality of the data can be improved. In addition, the internal code corresponding to the encrypted part of the data needs to be obtained through the seal password provided by the background system. After obtaining the internal code, the background system decodes it to verify the authenticity of the seal.

As shown in FIG. 10, in step 1002, the wireless communication device obtains the reading result of the chip of the seal from the external RFID reader. The reading result includes the UID of the chip and a set of data, and the set of data includes an encrypted part . In step 1004, the wireless communication device returns the UID of the chip to the background system to request the corresponding seal password. In step 1006, the wireless communication device receives the seal password from the background system. In step 1008, the wireless communication device obtains the internal code corresponding to the encrypted part according to the seal password. For example, after comparing the seal password to match the encrypted part, the chip of the seal will respond to the seal password and return the internal code of the encrypted part. In step 1010, after obtaining the internal code, the wireless communication device returns the internal code to the background system. In step 1012, the background system decodes the internal code to verify the authenticity of the seal.

In some embodiments, the operation of the above-mentioned wireless communication device can be performed by installing and running a specific APP trusted by the background system on the wireless communication device. The specific APP can be used to exchange data with the background system. Furthermore, the specific APP can obtain the seal code from the background system according to the UID of the seal chip, and provide the seal code to the seal chip for comparison through the external RFID reader. If the comparison result is a match, the specific APP can obtain the internal code from the chip of the seal. The specific APP can further provide the acquired internal code to the background system for decoding. Since the background system already knows the content of the data before encryption, it can verify the authenticity of the seal by decoding the internal code.

In some embodiments, the above-mentioned wireless communication device and the external RFID reader can be integrated into a single external device, and the external device has both the networking capability for communicating with the background system and the RFID tag reading capability. In this case, the information exchange step between the wireless communication device and the external RFID reader in FIG. 10 can be omitted.

The aforementioned seal can have the following functions: (1) Anti-counterfeiting: The electronic paper seal has a UID chip inside, and must obtain a read password from the background system through a trusted APP to read the internal code of the seal, which has an anti-counterfeiting effect. (2) Read and write: The electronic paper seal can also write necessary container (object) information when sealing and reading, such as ship hanging, seal, destination and other data, which can be read and confirmed offline to ensure that the container ( (Things) mobile security. (3) The electronic paper seal is sealed at the opening of the cabinet door, which has the function of anti-disassembly and damage warning. It can be used with other mechanical or electronic seals to enhance the auxiliary effect of mobile safety. (4) The combination of the system and smart phones is in line with the global logistics development trend, and the passive electronic (paper) seal can be directly read through the APP-controlled (dual frequency) portable reader.

So far, one aspect of the present disclosure provides a seal including a first adhesive layer, an electronic component layer, a second adhesive layer, and a protective layer. The first adhesive layer has a first thickness. The electronic component layer is arranged on the first adhesive layer and includes a first RFID tag, wherein the RFID tag includes a first antenna structure and a first chip electrically connected to the antenna structure. The second adhesive layer is disposed on the electronic component layer and has a second thickness different from the first thickness. The protective layer is arranged on the second adhesive layer.

In some embodiments, the first thickness is greater than the second thickness. For example, the ratio of the first thickness to the second thickness (T1/T2) is between 6 and 1.

In some embodiments, the plane profile of the seal is substantially rectangular. The first antenna structure has a main body and a protrusion. The main body part is arranged in the middle area of the plane profile. The protrusion extends outward from the main body to the vicinity of the boundary of the plane profile.

In some embodiments, when the structure of the first antenna structure is complete, an external radio frequency identification reader is used to read the seal to generate the first reading result; when the structure of the protrusion is damaged, The external radio frequency identification reader is made to read the seal to generate a second reading result, wherein the first reading result is different from the second reading result.

In some embodiments, the protrusion of the first antenna structure is arranged to avoid the four corner regions of the planar contour of the seal.

In some embodiments, the seal is further formed with a T-shaped notch, and two wings of the T-shaped notch extend substantially along the outer edge of the main body of the first antenna structure.

In some embodiments, the first RFID tag further includes a first conductive circuit electrically connected to the chip. The first conductive line is arranged around the first antenna structure and extends to the vicinity of the boundary of the plane profile of the seal.

In some embodiments, when the structure of the first antenna structure is complete, an external radio frequency identification reader is used to read the seal to generate the first reading result; when the structure of the first conductive circuit is damaged When the external radio frequency identification reader reads the seal, the second reading result is generated. Wherein, the first reading result is different from the second reading result.

In some embodiments, the first chip includes a first set of pins and a second set of pins. The first set of pins are electrically connected to the first antenna structure. The second set of pins are electrically connected to the first conductive circuit. The first chip is configured to feed a signal to the first antenna structure through the first set of pins, and to detect whether the first conductive line is broken through the second set of pins.

In some embodiments, the RFID tag further includes: a second antenna structure electrically connected to the first chip. The operating frequency band of the second antenna structure is different from the operating frequency band of the first antenna structure.

In some embodiments, the electronic component layer further includes a second RFID tag, which is electrically isolated from the first RFID tag. The second RFID tag includes a second antenna structure, a second conductive circuit, and a second chip. The operating frequency band of the second antenna structure is different from the operating frequency band of the first antenna structure. The second conductive line is arranged around the second antenna structure and extends to the vicinity of the boundary of the plane profile of the seal. The second chip is electrically connected to the second antenna structure and the second conductive circuit, and is configured to detect whether the second conductive circuit is broken.

In some embodiments, the seal further includes a tamper-evident sticker layer, which is configured to be disposed on the protective layer or under the first adhesive layer. The area of the plane contour of the tamper-evident sticker layer is larger than the area of the plane contour of the protective layer.

In some embodiments, the first chip is configured to store a unique identification code and a set of data, the set of data includes an encrypted part, and the unique identification code is provided to the background system for the wireless communication device to obtain the corresponding The seal password of the seal; when the seal password matches the encrypted part, the first chip is further configured to respond to the seal password and transmit the internal code of the encrypted part for the background system to verify the authenticity of the seal.

However, the above are only examples of the present model. When the scope of implementation of the present model cannot be limited by this, all simple equivalent changes and modifications made in accordance with the scope of the patent application of the present model and the contents of the patent specification shall still belong to This new patent covers the scope.

100: seal

110: Middle area

120: side area

205: Release layer

215: The first adhesive layer

225: Electronic component layer

235: second adhesive layer

245: protective layer

T1: first thickness

T2: second thickness

310: Middle area

320: side area

325: Electronic component layer

321: The first RFID tag

322: first antenna structure

322m: main body

322p: protrusion

322b: Bridge element

323: first chip

B: boundary

425: Electronic component layer

421: The first RFID tag

422: first antenna structure

422m: main body

422p: protrusion

422b: Bridge element

423: first chip

C: corner area

T: T-shaped incision

525: Electronic component layer

521: The first RFID tag

522: The first antenna structure

523: first chip

523a: The first set of pins

523b: The second set of pins

625: electronic component layer

621: The first RFID tag

622: The first antenna structure

622b: Bridge element

623: first chip

623a: The first metal part

623b: The second metal part

623c: The third metal part

626: second antenna structure

725: Electronic component layer

721: The first RFID tag

722: First antenna structure

722b: Bridge element

723: first chip

727: Second RFID Tag

728: second antenna structure

729: second conductive line

730: second chip

800: seal

845: protective layer

850: Anti-tamper sticker layer

900: seal

945: protective layer

950: Anti-tamper sticker layer

1002: Step

1004: Step

1006: Step

1008: step

1010: Step

1012: Step

In order to understand the features described above in this case carefully, a more specific description of the above case can be provided by referring to the implementation aspects. Some implementation aspects are illustrated in the accompanying drawings. However, it should be noted that the accompanying drawings only illustrate the typical implementation aspects of this case and are therefore not regarded as limiting the scope of this case, because this case may recognize other equivalent implementation aspects. Figure 1 shows a schematic top view of a seal according to some embodiments of the present disclosure; Figure 2 shows a schematic cross-sectional view of a seal according to some embodiments of the present disclosure; FIGS. 3 to 7 respectively show a schematic top view of an electronic component layer of a seal according to some embodiments of the present disclosure; and Figure 8 shows a schematic top view of a seal according to some embodiments of the present disclosure. Figure 9 shows a schematic top view of a seal according to some embodiments of the present disclosure. FIG. 10 shows a flowchart of a mechanism for accessing and verifying the internal code of a seal according to some embodiments of the present disclosure. However, it should be noted that the drawings only show exemplary embodiments of the present disclosure, and therefore should not be considered as limiting the scope thereof, as the present disclosure may allow other equivalent embodiments. It should be noted that these drawings are intended to illustrate the methods, structures, and/or general characteristics of materials used in certain example embodiments, and to supplement the written description provided below. However, these drawings are not drawn to scale, and may not accurately reflect the precise structure or performance characteristics of any given embodiment, and should not be construed as defining or limiting the range of values or characteristics covered by example embodiments . For example, for clarity, the relative thickness and location of layers, regions, and/or structural elements may be reduced or enlarged. The use of similar or identical reference signs in various drawings is intended to indicate the presence of similar or identical elements or features.

310: Middle area

320: side area

325: Electronic component layer

321: The first RFID tag

322: first antenna structure

322m: main body

322p: protrusion

322b: Bridge element

323: first chip

B: boundary

Claims (13)

A seal includes: a first adhesive layer having a first thickness; an electronic component layer, arranged on the first adhesive layer, and including a first radio frequency identification tag, wherein the first radio frequency identification tag includes a first antenna The structure and the first chip are electrically connected to the first antenna structure; the second adhesive layer is provided on the electronic component layer and has a second thickness different from the first thickness; and a protective layer, provided On the second adhesive layer. The seal according to claim 1, wherein the ratio of the first thickness to the second thickness is between 6 and 1. The seal according to claim 1, wherein the plane profile of the seal is substantially rectangular; and wherein, the first antenna structure has a main body part, which is arranged in the middle area of the plane profile, and a protruding part from the main body part Extend to the vicinity of the boundary of the plane profile. The seal according to claim 3, wherein when the structure of the first antenna structure is complete, an external radio frequency identification reader is made to read the seal to generate a first reading result, When the structure of the protrusion is damaged, the external RFID reader is made to read the seal to generate a second reading result, wherein the first reading result is different from the second reading result . The seal according to claim 3, wherein the protrusion of the first antenna structure is arranged to avoid four corner regions of the plane profile of the seal. The seal according to claim 3, wherein the seal is further formed with a T-shaped notch, and two wings of the T-shaped notch extend substantially along the outer edge of the main body of the first antenna structure. The seal according to claim 1, wherein the first radio frequency identification tag further comprises: a first conductive circuit electrically connected to the first chip, wherein the first conductive circuit is arranged around the first antenna structure, And it extends to the vicinity of the boundary of the plane profile of the seal. The seal according to claim 7, wherein when the structure of the first antenna structure is complete, an external radio frequency identification reader is made to read the seal to generate a first reading result, and when the first antenna structure is complete When the structure of the conductive circuit is damaged, the external radio frequency identification reader is made to read the seal to generate a second reading result, wherein the first reading result is different from the second reading result. The seal according to claim 7, wherein the first chip includes: The first set of pins are electrically connected to the first antenna structure; and the second set of pins are electrically connected to the first conductive circuit, wherein the first chip is configured to connect to the first antenna structure through the first set of pins. The first antenna structure feeds a signal, and detects whether the first conductive line is broken through the second set of pins. The seal according to claim 9, wherein the first radio frequency identification tag further comprises: a second antenna structure electrically connected to the first chip, wherein the operating frequency band of the second antenna structure is the same as that of the first chip. The operating frequency band of the antenna structure is different. The seal according to claim 7, wherein the electronic component layer further includes: a second radio frequency identification tag electrically isolated from the first radio frequency identification tag, wherein the second radio frequency identification tag includes: the next day Line structure, the operating frequency band of the second antenna structure is different from the operating frequency band of the first antenna structure; the second conductive line is arranged around the second antenna structure and extends to the vicinity of the boundary of the plane profile of the seal And a second chip, electrically connected to the second antenna structure and the second conductive circuit, and is configured to detect whether the second conductive circuit is broken. The seal according to claim 1, further comprising: a tamper-evident sticker layer configured to be disposed on the protective layer or under the first adhesive layer, wherein the area of the plane outline of the tamper-evident sticker layer is larger than that of the protective layer The area of the plane profile. The seal according to claim 1, wherein the first chip is configured to: Store a unique identification code and a set of data, the set of data includes an encrypted part, the unique identification code is provided to the background system for the wireless communication device to obtain the seal password corresponding to the seal; and when the seal password matches the encryption Part, in response to the seal password, transmit the encrypted part of the internal code for the background system to verify the authenticity of the seal.

Images